<template>
    <div class="app-container">

        <div class="search-div">
            <el-form label-width="70px" size="small">
                <el-row>
                    <el-col :span="8">
                        <el-form-item label="关 键 字">
                            <el-input style="width: 95%" v-model="searchObj.keyword"
                                placeholder="用户名/姓名/手机号码"></el-input>
                        </el-form-item>
                    </el-col>
                    <el-col :span="8">
                        <el-form-item label="操作时间">
                            <el-date-picker v-model="createTimes" type="datetimerange" range-separator="至"
                                start-placeholder="开始时间" end-placeholder="结束时间" value-format="yyyy-MM-dd HH:mm:ss"
                                style="margin-right: 10px;width: 100%;" />
                        </el-form-item>
                    </el-col>
                </el-row>
                <el-row style="display:flex">
                    <el-button type="primary" icon="el-icon-search" size="mini" :loading="loading"
                        @click="fetchData()">搜索</el-button>
                    <el-button icon="el-icon-refresh" size="mini" @click="resetData">重置</el-button>
                    <el-button type="success" icon="el-icon-plus" size="mini" @click="add">添 加</el-button>
                    <el-button class="btn-add" size="mini" @click="batchRemove()">批量删除</el-button>
                </el-row>
            </el-form>
        </div>


        <!-- 列表 -->
        <el-table v-loading="listLoading" :data="list" stripe border style="width: 100%;margin-top: 10px;"
            @selection-change="handleSelectionChange">
            <el-table-column type="selection" />
            <el-table-column label="序号" width="70" align="center">
                <template slot-scope="scope">
                    {{ (pageNo - 1) * pageSize + scope.$index + 1 }}
                </template>
            </el-table-column>

            <el-table-column prop="username" label="用户名" width="100" />
            <el-table-column prop="name" label="姓名" width="70" />
            <el-table-column prop="phone" label="手机" width="120" />
            <el-table-column prop="postName" label="岗位" width="100" />
            <el-table-column prop="deptName" label="部门" width="100" />
            <el-table-column label="所属角色" width="130">
                <template slot-scope="scope">
                    <span v-for="item in scope.row.roleList" :key="item.id" style="margin-right: 10px;">{{
                        item.roleName
                        }}</span>
                </template>
            </el-table-column>
            <el-table-column label="状态" width="80">
                <template slot-scope="scope">
                    <el-switch v-model="scope.row.status === 1" @change="switchStatus(scope.row)">
                    </el-switch>
                </template>
            </el-table-column>
            <el-table-column prop="createTime" label="创建时间" width="160" />

            <el-table-column label="操作" width="180" align="center" fixed="right">
                <template slot-scope="scope">
                    <el-button type="primary" icon="el-icon-edit" size="mini" @click="edit(scope.row.id)" title="修改" />
                    <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeDataById(scope.row.id)"
                        title="删除" />
                    <el-button type="warning" icon="el-icon-baseball" size="mini" @click="showAssignRole(scope.row)"
                        title="分配角色" />
                </template>
            </el-table-column>
        </el-table>

        <!-- 分页组件 -->
        <el-pagination :current-page="pageNo" :total="total" :page-size="pageSize"
            :page-sizes="[5, 10, 20, 30, 40, 50, 100]" style="padding: 30px 0; text-align: center;"
            layout="sizes, prev, pager, next, jumper, ->, total, slot" @current-change="fetchData"
            @size-change="changeSize" />

        <el-dialog title="添加/修改" :visible.sync="dialogVisible" width="40%">
            <el-form ref="dataForm" :model="sysUser" label-width="100px" size="small" style="padding-right: 40px;">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="sysUser.username" />
                </el-form-item>
                <el-form-item v-if="!sysUser.id" label="密码" prop="password">
                    <el-input v-model="sysUser.password" type="password" />
                </el-form-item>
                <el-form-item label="姓名" prop="name">
                    <el-input v-model="sysUser.name" />
                </el-form-item>
                <el-form-item label="手机" prop="phone">
                    <el-input v-model="sysUser.phone" />
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="dialogVisible = false" size="small" icon="el-icon-refresh-right">取 消</el-button>
                <el-button type="primary" icon="el-icon-check" @click="saveOrUpdate()" size="small">确 定</el-button>
            </span>
        </el-dialog>

        <el-dialog title="分配角色" :visible.sync="dialogRoleVisible">
            <el-form label-width="80px">
                <el-form-item label="用户名">
                    <el-input disabled :value="sysUser.username"></el-input>
                </el-form-item>

                <el-form-item label="角色列表">
                    <el-checkbox :indeterminate="isIndeterminate" v-model="checkAll"
                        @change="handleCheckAllChange">全选</el-checkbox>
                    <div style="margin: 15px 0;"></div>
                    <el-checkbox-group v-model="userRoleIds" @change="handleCheckedChange">
                        <el-checkbox v-for="role in allRoles" :key="role.id"
                            :label="role.id">{{role.roleName}}</el-checkbox>
                    </el-checkbox-group>
                </el-form-item>
            </el-form>
            <div slot="footer">
                <el-button type="primary" @click="assignRole" size="small">保存</el-button>
                <el-button @click="dialogRoleVisible = false" size="small">取消</el-button>
            </div>
        </el-dialog>
    </div>
</template>

<script>
    import api from '@/api/system/sysUser'
    import roleApi from '@/api/system/sysRole'
    const defaultForm = {
        id: '',
        username: '',
        password: '',
        name: '',
        phone: '',
        status: 1
    }
    export default {
        data() {
            return {
                listLoading: true, // 数据是否正在加载
                list: null, // banner列表
                total: 0, // 数据库中的总记录数
                pageNo: 1, // 默认页码
                pageSize: 5, // 每页记录数
                searchObj: {}, // 查询表单对象

                createTimes: [],

                multipleSelection: [],// 批量删除选中的记录列表
                dialogVisible: false,
                sysUser: defaultForm,
                saveBtnDisabled: false,

                dialogRoleVisible: false,
                allRoles: [], // 所有角色列表
                userRoleIds: [], // 用户的角色ID的列表
                isIndeterminate: false, // 是否是不确定的
                checkAll: false // 是否全选
            }
        },

        // 生命周期函数：内存准备完毕，页面尚未渲染
        created() {
            console.log('list created......')
            this.fetchData()

            roleApi.findAll().then(response => {
                this.roleList = response.data;
            })
        },

        // 生命周期函数：内存准备完毕，页面渲染成功
        mounted() {
            console.log('list mounted......')
        },

        methods: {
            // 当页码发生改变的时候
            changeSize(sizeNo) {
                console.log(sizeNo)
                this.pageSize = sizeNo
                this.fetchData(1)
            },

            // 加载banner列表数据
            fetchData(pageNo = 1) {
                debugger
                this.pageNo = pageNo
                console.log('翻页。。。' + this.pageNo)

                if (this.createTimes && this.createTimes.length == 2) {
                    this.searchObj.createTimeBegin = this.createTimes[0]
                    this.searchObj.createTimeEnd = this.createTimes[1]
                }

                api.getPageList(this.pageNo, this.pageSize, this.searchObj).then(
                    response => {
                        //this.list = response.data.list
                        this.list = response.data.records
                        this.total = response.data.total

                        // 数据加载并绑定成功
                        this.listLoading = false
                    }
                )
            },

            // 重置查询表单
            resetData() {
                console.log('重置查询表单')
                this.searchObj = {}
                this.createTimes = []
                this.fetchData()
            },

            // 根据id删除数据
            removeDataById(id) {
                // debugger
                this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(() => { // promise
                    // 点击确定，远程调用ajax
                    return api.removeById(id)
                }).then((response) => {
                    this.fetchData()
                    this.$message.success(response.message || '删除成功')
                }).catch(() => {
                    this.$message.info('取消删除')
                })
            },

            // -------------
            add() {
                this.dialogVisible = true
                this.sysUser = Object.assign({}, defaultForm)
            },

            edit(id) {
                this.dialogVisible = true
                this.fetchDataById(id)
            },

            fetchDataById(id) {
                api.getById(id).then(response => {
                    this.sysUser = response.data
                })
            },

            saveOrUpdate() {
                this.$refs.dataForm.validate(valid => {
                    if (valid) {
                        this.saveBtnDisabled = true // 防止表单重复提交
                        if (!this.sysUser.id) {
                            this.saveData()
                        } else {
                            this.updateData()
                        }
                    }
                })
            },

            // 新增
            saveData() {
                api.save(this.sysUser).then(response => {
                    this.$message.success('操作成功')
                    this.dialogVisible = false
                    this.fetchData(this.page)
                })
            },

            // 根据id更新记录
            updateData() {
                api.updateById(this.sysUser).then(response => {
                    this.$message.success(response.message || '操作成功')
                    this.dialogVisible = false
                    this.fetchData(this.page)
                })
            },

            // 当多选选项发生变化的时候调用
            handleSelectionChange(selection) {
                console.log(selection)
                this.multipleSelection = selection
            },
            // 批量删除
            batchRemove() {
                if (this.multipleSelection.length === 0) {
                    this.$message.warning('请选择要删除的记录！')
                    return
                }
                this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(() => {
                    // 点击确定，远程调用ajax
                    // 遍历selection，将id取出放入id列表
                    var idList = []
                    this.multipleSelection.forEach(item => {
                        idList.push(item.id)
                    })
                    // 调用api
                    return api.batchRemove(idList)
                }).then((response) => {
                    this.fetchData()
                    this.$message.success(response.message)
                })
            },

            showAssignRole(row) {
                this.sysUser = row
                this.dialogRoleVisible = true
                this.getRoles()
            },

            getRoles() {
                roleApi.getRoles(this.sysUser.id).then(response => {
                    const { allRolesList, assginedRolesList } = response.data
                    this.allRoles = allRolesList
                    this.userRoleIds = assginedRolesList.map(item => item.id)
                    this.checkAll = allRolesList.length === assginedRolesList.length
                    this.isIndeterminate = assginedRolesList.length > 0 && assginedRolesList.length < allRolesList.length
                })
            },

            /*
            全选勾选状态发生改变的监听
            */
            handleCheckAllChange(value) {// value 当前勾选状态true/false
                // 如果当前全选, userRoleIds就是所有角色id的数组, 否则是空数组
                this.userRoleIds = value ? this.allRoles.map(item => item.id) : []
                // 如果当前不是全选也不全不选时, 指定为false
                this.isIndeterminate = false
            },

            /*
            角色列表选中项发生改变的监听
            */
            handleCheckedChange(value) {
                const { userRoleIds, allRoles } = this
                this.checkAll = userRoleIds.length === allRoles.length && allRoles.length > 0
                this.isIndeterminate = userRoleIds.length > 0 && userRoleIds.length < allRoles.length
            },

            assignRole() {
                let assginRoleVo = {
                    userId: this.sysUser.id,
                    roleIdList: this.userRoleIds
                }
                roleApi.assignRoles(assginRoleVo).then(response => {
                    this.$message.success(response.message || '分配角色成功')
                    this.dialogRoleVisible = false
                    this.fetchData(this.page)
                })
            },

            switchStatus(row) {
                row.status = row.status === 1 ? 0 : 1
                api.updateStatus(row.id, row.status).then(response => {
                    if (response.code) {
                        this.$message.success(response.message || '操作成功')
                        this.dialogVisible = false
                        this.fetchData()
                    }
                })
            },


        }
    }
</script>